Terminal for wire and wire rope.



H. J. HORN..

TERMINAL FOR WIRE AND wlRE RoPE.

APPLICATION FILED OCT. 20, I915.

Patented Dec. 4, 1917:

*UNTTEH snares rarnnr onnron.

HAROLD J. HORN, OF TRENTON, NEW JERSEY, ASSIGNOR TO JOHN A. ROEBLINGSSONS COMPANY, A OORIPORATION OF NEW JERSEY.

TERMINAL FOB WIRE AND WIRE ROPE.

Specification of Letters Patent.

Patented Dec. 4, 191?.

To all whom it may concern:

Be it known that I, HAROLD J. HORN, a citizen of the United States,residing at Trenton, county of Mercer, and State of New Jersey, haveinvented. certain new and useful Improvements in Terminals for Wire andWire Rope, fully described and represented in the followingspecification and the accompanying drawings, forming a part of the same.

The especial object of the present inven tion is to provide an improvedterminal or attaching end for the wire rope stays of aeroplanes, but theterminal of the present invention is applicable, also, to other uses.

, I aim especially to provide a terminal which shall develop the fullstrength of the wire or wire rope and which shall secure a better lockunder strain than those heretofore in use, while at the same timesimpleand cheap in construction.

For a full understanding of the invention, a detailed description ofterminals embodying the invention in preferred forms will now be given,in connection with the accompanying drawings forming a. part of thisspecification, and the invention then particularly pointed out in theclaims.

In the drawings,

Figure 1 is a, side view of a terminal in the form preferably used,where especial strength is required.

Fig. 2 is an edge view of the same.

Fig. 3 is a longitudinal section on the line 3 of Fig. 2.

Fig. 4. is a cross section on the line 4. of Fig. 3.

Figs. 5 and 6 are views correspondlng to Figs. 1 and 2, showing amodified construction.

Fig. 7 is a view similar to Figs. 1 and 5, showing a terminal similar toFig. 5 but without the thimble inside the rope wire.

Fig. 8 is a cross section on the line 88 of Fig. 7.

Fig. 9 is a terminal similar to that of Fig. 7, but with a double eye.

Referring to the drawings and now especially to Figs. 1 to 4, a is thewire or wire rope on which the terminal is formed, which is bent to forman eye 10 at the end with a thimble 11 therein, this thimble being shownas open at the side for insertion of an y Or i e" b fore the t m na iform if desired,

The thimble 11 is formed with a long wedge portion 12 extending alongthe rope a and between the two sides of the loop forming the eye 10,this wedge 12 preferably bcing grooved on opposite sides for the rope. Atapering ferrule 13 formed of helically wound wire incloses the wedge 12and the ropes on opposite sides of the wedge, and the end 14 of the ropeor is bent back around the inner end of the ferrule and over it, andsecured in place so as to prevent it being straightened out by pull onthe eye. For holding this bent end 14 most strongly in position so thatpull upon the eye shall lock the ferrule firmly, the wires of the ropeend 14 are preferably spread out as shown. and secured between layers ofcomparatively small wires 1 wound about the ferrule 13 and about therope end 14.

It will be seen that this construction provides an exceedingly strongterminal, in which the effect of strain is to lock the parts firmlytogether by the friction caused by crowding the ropes and wedge togetheras the ferrule is forced up on the wedge, and that this pressure issecured throughout the length of the wedge and ferrule bythe preferredtapering form of the ferrule. The taper of the inner end of the eye alsoavoids danger of breakage at this point, and aids in securing the properaction of the wedgeand ferrule. No solder or other similar connection isused throughout the terminal, and the full strength of the wire or Wirerope is secured. The construction, also, is simple, cheap and convenientof manufacture.

In Figs. 5 and 6 a construction similar to that of Figs. 1 to 4 isshown, except that the thimble 15 is closed instead of open at the side,and the rope end 14 is secured simply by bending it back over thetapering ferrule 13 and bending a stifl' wire 2 about the ferrule andrope end. This construction will be found satisfactory for conditionsnot requiring the especial strength of the terminal shown in Figs. 1 to4.

In Figs. 7 and 8 a construction is shown similar to that of Figs. 5 and6, except that no thimble is used within the eye 10, and a separatewedge 16 is between the ropes inclosed by the ferrule 13 and acts in thesame manner as in the constructions previously described. Theconstruction shown in Fig. 9

is the same as that shown in Figs. 7 and 8, except that the rope a isbent around to form a double eye 17, thus securing greater strength, ascompared with the construction shown in Figs. 7 and 8.

What I claim is:

l. A terminal for wire or wire rope hav-- ing the wire or wire ropelooped to form an eye, a wedge between the sides of the loop taperingfrom the eye and a ferrule inclosing the sides of the loop and thewedge, the end of the wire or wire rope being bent back around the innerend of the ferrule and the wedge, the end of the wire or wire rope beingbent back around the inner end of the ferrule and having the bent endsecured to prevent straightening.

3. A terminal for wire or wire rope having a wire or wire rope looped toform an eye, a wedge between the sides of the loop, and a ferrule formedof helically wound wire inclosing the sides of the loop and the wedge,the end of the wire or wire rope be ing bent back around the inner endof the ferrule and having the bent end secured to prevent straightening.

4:. A terminal for wire or wire rope having the wire or wire rope loopedto form an eye and a thimble within the eye, the inner end of whichthimble forms a wedge beformed of helically wound wire inclosing thesides of the loop and the wedge, the end of the wire or wire rope beingbent back around the inner end of the ferrule and spread out, and awinding of small wires upon the ferrule inside and outside the ropeendfor holding the rope end against straightening.

6. A terminal'for wire or wire rope hav-.

ing the wire or wire rope looped to form an eye, a wedge between'thesides of the loop, a ferrule formed of helically wound wlre inclosingthe sides of the loop and the wedge,

the end of the wire or wire rope being bent back around the inner end ofthe ferrule and spread out, and a winding of small wires upon theferrule inside and outside the rope end for holding the rope end againststraightening.

In testimony whereof, I have hereunto .setmy hand in the presence of twosubscribing witnesses.

, HAROLD J. HORN. \Vitnesses GORDON W. WALLER,

PETER A. KUGKER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

